1. iTunes offers a cloud based option. This would make sense as Apple did purchase Lala and shut them down, and rumors were that it was because Apple wanted to offer that same type of service via iTunes and bought Lala to use that tech.

2. Movie and TV show streaming comes to iTunes in similar fashion to how it has come to Apple TV. This allows ALL Apple devices to get in on that "fun" (OSX run devices as well as iOS run devices). To that same end, Apple may offer a "service" similar to Hulu and Netflix. Hell...I wouldn't put it past Apple to BUY Netflix.

3. The Beatles catalog available on iTunes. No one cares but Beatles fans, and Steve Jobs is a HUGE Beatles fan.